# Hymen L. Lipman — Patents explained on PatentBrief

Hymen L. Lipman has 1 landmark patent explained in plain English on PatentBrief.

- [How the Pencil and Eraser Became One Tool](https://patentbrief.org/patent/us/19783/pencil-eraser-combination-lipman) — granted 1858
  Hymen Lipman's 1858 invention that permanently attached an eraser to the end of a wooden pencil, creating the modern writing tool we use today.

**Full profile:** https://patentbrief.org/company/hymen-l-lipman

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._